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| Requester Channel |
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| ping master |
 Posted: Thu Apr 10, 2003 10:17 am Post subject: Requester Channel |
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Centurion
Joined: 20 Sep 2002
Posts: 116
Location: USA
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when the DISC INT causes the channel to drop, it goes to an "inactive" state rather than a "stopped" state-
problem is, when I then issue a channel status cmd on that chl, it bombs.. but only when the channel is inactive of course, any other state it works great.
Any ideas how to make the channel go to a stopped state instead of inactive..if that is not possible, is it normal to write error handling logic to assume it is inactive set it to a status? (win Xp/ver 5.3)
thx
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| meekings |
| Posted: Thu Apr 10, 2003 10:26 am Post subject: |
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Voyager
Joined: 28 Jun 2001
Posts: 86
Location: UK, South West
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Where are you issuing a channel status command from? And what is it that bombs?
I think the only way to get a channel into STOPPED state is to stop it manually.
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Brian Meekings
Information Design, Inc. |
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| ping master |
| Posted: Thu Apr 10, 2003 10:57 am Post subject: |
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Centurion
Joined: 20 Sep 2002
Posts: 116
Location: USA
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Im issuing a mqexecute mqai command to the command server for MQCMD_INQUIRE_CHANNEL_STATUS.
| Code: |
mqreplybag = mqadminbag.Execute(QueueManager,42,optsbag,RequestQueue,ReplyQueue);
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strange, because when we were on NT/ ver2.1 it would drop to a stopped state unlike what it is doing in 5.3.
also if the channels are disabled, they will be in a stopped state, but what about if they have a message sequence error...stoppped also?
thanks
Last edited by ping master on Fri Apr 11, 2003 10:30 am; edited 1 time in total |
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| kevinf2349 |
| Posted: Fri Apr 11, 2003 6:32 am Post subject: |
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Grand Master
Joined: 28 Feb 2003
Posts: 1311
Location: USA
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IMHO I wouldn't want my channel in a STOPPED state...period.
An INACTIVE channel can easily be restarted using triggering and as far as I recall (and maybe this has changed since 1998) this state is the only state that allows that to happen.
We use reasonable short disconnect intervals (10 minutes) and we trigger to restart whenever a message hits the XMITQ so we are not in the least bit worried by a channel being INACTIVE. In fact we dislike them being in a STOPPED state.
I am prepared to be corrected on the triggering requirements as I haven't really checked on that recently.
Another good reason for having a disconnect interval on the channel is that the encrytpion key (if you are using them) is negotiated at bind time and they exist for the duration of the channel connection. The longer the channel is active the greater the window of opportunity to break the encryption key.
I am not sure there is any real hard and fast ROTs for the disconnect interval or even whether to use one or not. that should be down to your own site (and data) requirements, and there is an overhead (read delay) while a channel gets started, but in my experience the delay usually isn't even.
Just my 2 cents worth.  |
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| ping master |
| Posted: Fri Apr 11, 2003 10:29 am Post subject: |
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Centurion
Joined: 20 Sep 2002
Posts: 116
Location: USA
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thanks Kevin.
currently our system is set up exactly the same, our disconnect interval is set so after 4 min, it drops to inactive - we also have a trigger monitor on the xmitq to start the channel when a message drops in..
But in this case...
IYHO, if i have a monitoring tool, and I want to check the channel status, what scenario would you do then..
1-check channel status automatically on loading the application
2-if channel has no status(inactive)
3-output a message to user "Channel is Inactive"
4-then issue a start channel command programmatically
5-again check channel status
6-now output a message to user "Channel Running"
thanks
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